One vertex per element, one color per generator, with an edge from x to x·s.
(2,4)(5,6)(7,13)(8,12)(9,11)(10,15)(14,20)(16,18)(17,19)(21,22,25,24)(23,29,31,27)(26,28,34,33)(30,32,36,35)(5,7,9,15)(6,10,11,13)(8,16,17,14)(12,20,19,18)(21,23,25,31)(22,27,24,29)(26,35,34,32)(28,36,33,30)(1,2,3,4)(21,24,25,22)(23,30,31,36)(26,28,34,33)(27,35,29,32)(6,11)(10,13)(12,19)(18,20)(22,24)(23,31)(28,33)(32,35) involution — undirected(5,8,9,17)(6,12,11,19)(7,14,15,16)(10,18,13,20)(23,32)(26,34)(27,30)(28,33)(29,36)(31,35)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.